From c505c3eb243de07b8a59d71b5dbe5683ee9466f4 Mon Sep 17 00:00:00 2001 From: patacongo Date: Wed, 1 Jun 2011 19:15:14 +0000 Subject: First cut at FTP client git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3654 42af7a65-404d-4744-a932-0658087f49c3 --- apps/netutils/ftpc/ftpc_utils.c | 251 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 apps/netutils/ftpc/ftpc_utils.c (limited to 'apps/netutils/ftpc/ftpc_utils.c') diff --git a/apps/netutils/ftpc/ftpc_utils.c b/apps/netutils/ftpc/ftpc_utils.c new file mode 100644 index 000000000..46944e4b2 --- /dev/null +++ b/apps/netutils/ftpc/ftpc_utils.c @@ -0,0 +1,251 @@ +/**************************************************************************** + * apps/netutils/ftpc/ftpc_utils.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include + +#include "ftpc_internal.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ftpc_nibble + * + * Description: + * Convert a ASCII hex 'digit' to binary + * + ****************************************************************************/ + +int ftpc_nibble(char ch) +{ + if (ch >= '0' && ch <= '9') + { + return (unsigned int)ch - '0'; + } + else if (ch >= 'A' && ch <= 'F') + { + return (unsigned int)ch - 'A' + 10; + } + else if (ch >= 'a' && ch <= 'f') + { + return (unsigned int)ch - 'a' + 10; + } + return ERROR; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ftpc_reset + * + * Description: + * Reset the FTP session. + * + ****************************************************************************/ + +void ftpc_reset(struct ftpc_session_s *session) +{ + ftpc_sockclose(&session->data); + ftpc_sockclose(&session->cmd); + free(session->uname); + session->uname = NULL; + free(session->pwd); + session->pwd = NULL; + free(session->initdir); + session->initdir = NULL; + session->flags = FTPC_FLAGS_INIT; + session->xfrmode = FTPC_XFRMODE_UNKNOWN; + session->code = 0; + session->replytimeo = CONFIG_FTP_DEFTIMEO * CLOCKS_PER_SEC; + session->conntimeo = CONFIG_FTP_DEFTIMEO * CLOCKS_PER_SEC; +} + +/**************************************************************************** + * Name: ftpc_curdir + * + * Description: + * Update the current working directory + * + ****************************************************************************/ + +void ftpc_curdir(struct ftpc_session_s *session) +{ + free(session->prevdir); + session->prevdir = session->curdir; + session->curdir = ftpc_pwd((SESSION)session); +} + +/**************************************************************************** + * Name: ftpc_stripcrlf + * + * Description: + * Strip any trailing carriage returns or line feeds from a string. + * + ****************************************************************************/ + +void ftpc_stripcrlf(FAR char *str) +{ + FAR char *ptr; + int len; + + if (str) + { + len = strlen(str); + if (len > 0) + { + ptr = str + len - 1; + while (*ptr == '\r' || *ptr == '\n') + { + *ptr = '\0'; + ptr--; + } + } + } +} + +/**************************************************************************** + * Name: ftpc_stripslash + * + * Description: + * Strip any trailing slashes from a string. + * + ****************************************************************************/ + +FAR char *ftpc_stripslash(FAR char *str) +{ + FAR char *ptr; + + if (!str || !*str) + return str; + + ptr = strchr(str, 0); + if(!ptr) + return str; + ptr--; + if(*ptr == '/') { + if(ptr != str) /* root directory */ + *ptr = 0; + } + return str; +} + +/**************************************************************************** + * Name: ftpc_stripslash + * + * Description: + * Convert quoted hexadecimal constants to binary values. + * + ****************************************************************************/ + +FAR char *ftpc_dequote(FAR const char *str) +{ + FAR char *allocstr = NULL; + FAR char *ptr; + int ms; + int ls; + int len; + + if (str) + { + /* Allocate space for a modifiable copy of the string */ + + len = strlen(str); + allocstr = (FAR char*)malloc(len+1); + if (allocstr) + { + /* Search the string */ + + ptr = allocstr; + while (*str) + { + /* Check for a quoted hex value */ + + if (str[0] == '%') + { + /* Extract the hex value */ + + ms = ftpc_nibble(str[1]); + if (ms >= 0) + { + ls = ftpc_nibble(str[2]); + if (ls >= 0) + { + /* Save the binary value and skip ahead by 3 */ + + *ptr++ = (char)(ms << 8 | ls); + str += 3; + continue; + } + } + } + + /* Just transfer the character */ + + *ptr++ = *str++; + } + + /* NUL terminate */ + + *ptr = '\0'; + } + } + + return allocstr; +} -- cgit v1.2.3